2001-2010 - GMC Sierra 1500HD, 2500HD, 3500, 3500 HD (2wd & 4wd). 2001-2010 - Chevy Silverado 1500HD, 2500HD, 3500 HD (2wd & 4wd). CNC machined ball joint cup with improved positioning ideal for use with leveling/lift kits.
Installed my new upper control arms this weekend and have to report the it was a breeze. The Zone Offroad - Upper Control Arm Kit installed very easily and it looks good too!
I would recommend this product to any and everyone.
It definitely improved the ride of my truck.